000 00310nam a2200121Ia 4500
008 220408s1977 xx 000 0 und d
041 _aeng
082 _a330.28
_bICS
100 _aICSSR
_9476218
245 _aSurvey of Research in Eco. Vol.1
260 _aNew Delhi
_b Allied Publishers
_c1977
300 _a135p
999 _c338425
_d338425